Question: What is the position held by Jacob Zuma whose series ordinal is 4?
Paraphrase: What position does Jacob Zuma, whose series ordinal is 4, hold?
SPARQL (Wikidata): SELECT ?obj WHERE { wd:Q57282 p:P39 ?s . ?s ps:P39 ?obj . ?s pq:P1545 ?x filter(contains(?x , '4')) }